Social media is a marketing tool pre-Internet marketers could only dream of. A virtually complete directory of every consumer on the planet? Indexed and targetable by age, gender, location, and a hundred other identifiable details? Maybe in science fiction, a marketer of 40 years ago would have said.

Never forget, startup founders and marketers of the 21st century: we are living in the future.

But, as they say, with great power comes great responsibility. Social media is a tool. And, like, any tool, it is only as good as how it’s used – and what it’s used for. Nowhere is that more clear than in the world of social media advertising.

When it comes to social media advertising, execution is everything. And here’s the thing: ninety percent of t...